Crossword Genius

May be bent on catching fish (3)

Ross

I believe the answer is:

rod

I'm a little stuck... Click here to teach me more about this clue!

This could be a double definition.

'may' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'bent on catching fish' is the second definition.
The definition and answer can be both animals as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'be' acts as a link.

Can you help me to learn more?

(Other definitions for rod that I've seen before include "Stick - measure" , "An angler's stick" , "pistol" , "Cane - shaft" , "Wand - fishing stick" .)

I've seen this clue in The Globe and Mail.
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